Improvement



w. wAssofN, P. r. Powens @L G. w. DuNVeAN.

Harvester-(Intiem.

N13/135,500, 2,5571' PatentedEebQ 4,1873.

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Y.WARREN wAssoN, VrHINEAs ErowERs, vAND GEoEGE W. DUNGAN, oE

GENOA, NEvADA.

IMPROVEMENTn -IN HARVESTER-CUTTERS.l

` Specification forming part of Letters Patent No. 135,500, dated February, 1873.

WARREN WAssoN,

' State .of Nevada, have invented a new and useful Improvement in Harvester-Cutters, of which the following is a specilication:

Figure V.Lisa top view of our improved cutters adjusted for use. Fig. 2 is a rear view of the same. Fig. 3 is a detail section taken through the line :v Fig. 2. Fig. 4Yis a detail section taken through the line y y, Fig; 2. Fig. 5 is a detail section taken-through the line c` z, Fig. 1. Fig. 6 is a side view of the journalbox .for the pitman. Fig. 7 is a detail section of the same taken through the line w w, Fig. 6: Fig. 8 is a detail. view of the lever-extension.

Similar letters of reference indicate correspondin g parts.

Our invention has for its object to improve theconstruction of harvester-cutters so that they can be conveniently detached and attached, when desired, and will be securely held when in place. The invention consists in the features of improvement hereinafter fully dlescribed and subsequently pointed out in c aim.

The cutter-bar is made in two parts, F R, which are placed side by side. The edge of one of the parts F B has a tongue formed upon it, and the adjacent edge of the other part has a corresponding groove formed in it, into which the said tongue ts. The tongue and groove may be made plane, or the outer part of the tongue and the inner part of the groove may be enlarged. The tongue and groove may extend the entire length of the cutterbar or may be in sections of any desired length. The parts F R may also be made without the tongue and groove, if desired. The heads f1 r1 have each a horizontal notch or recess at each end, so that when the blank E has been placed down over them the ed ges of the blankslots will be opposite said recesses. By this construction, when the two heads are carried in opposite directions by the movement that carries the parallel bars the blank will be locked in place by the edges that enter recesses. Upon the rear side of the head r1 is placed a lever or key, B, upon the inner side of thelouter part of which is attached, or uponit is formed, a pin, b', which is made with an `offset or shoulder, and which passes through a holein the .head r1 and enters a hole inthe head f1, the hole through the head r1 being enlarged so that thejpinb can be inserted in place when the lever lB is raised into a vertical position and so thepin b will act as a crank or cam when the lever lB is turned in either direction to move the parts F R upon each other. Through the inner ends of the heads y1 r1 `of the parts F R and lever B is formed a vhole to receive the box or bushing A in which the end of the pitman works. The box A and the hole through the heads f1 r1 and lever B j A are made slightly tapering, and said box has a flange, al, formed around its larger end to prevent it from going in so far as to wedge or stick. Upon one side of the box A is formed a tongue or feather, a2, which enters a corresponding groove in the heads r1 f1 and lever B at the side of the hole through said parts, so that the box will be held stationary and the pitrnan will work in it. C are the cuttersec tions, each of which has two forwardly-inclined holes formed in it to receive the forwardly-inclined pinf2 attached to the forward part of the forward part F of the cutter-bar.

In the rear part of each of the cutters G is formed a rearwardly-inclined slot to reeeive the rearwardly-inclined square projection r2 formed upon the rear part R of the cutter-bar. The inner ends of the said slots are enlarged so that the projections r2 may pass through them freely. By this construction, as the lever B is turned outward the rear part B of the cutter-bar will be drawn inward and the forward part F will be pushed outward, carrying the cutters G with it, thus bringing the projections r2 into the enlarged part of their slots and allowing one or all the cutters to be detached. The cutters O are slightly curved or arched transversely, so that when lying free they will rest only upon their side edges. When the cutters have been ar ranged in place, by moving the lever B inward the rear part R of the cutter-bar will be pushed outward and the forward part F will be drawn inward, carrying the cutters C with it and forcing the projections r2 into the narrow parts of their slots and locking the cutters in place. The projections r2 also draw down the middle parts of the cutters, so that their elasticity may take up any Wear and prevent any rattling. E is a false or blank cutter, which is slightly curved transversely and has a slot formed in it of such a size as to allow it to be slipped down over the headsfl r1 when the lever B has been detached. In thev hole in the lever B and prevent it from turn ing in said hole. The part D thus becomes an extension of the lever B, and is designed for use should rust or other cause impede the movement of said lever B. The part D may also have projections d2 formed upon it to rest upon the top and end edges of the lever B to make the connection between the parts B D firmer. The projections d2 also enable the extension lever to be used in cases when the box A is not used and when there is no groove in the hole in the lever B. The other end of the extension lever D may have different-sized notches orholes'formed in it to adapt it'to serve as a wrench.

Having thus described our invention, we claim as new and desire to secure by Letters Patent- 1. A cutter-bar consisting of two parts, F B, sliding upon each other in opposite directions, and having studs f2 and studs r2, respectively, as described, for the purpose of fastening the cutter-sections.

2. The detachable, apertured, and slotted cutters C, made with a slight transverse curve., as and for the purpose set forth.

v3. The aperturedslever B, having pin b', combined with heads f1 r1, as and for the purpose set forth.

4. rllhe bushing A, combined with heads f1 r1 and lever B, as and for the purpose set forth.

5. The slotted plate E, havinga notch, e, at each end, combined with reversely-movable heads f1 r1, undercut at each end, as and for the purpose set forth.

VARREN WASSON. PHINEAS FRANKLIN POWERS. GEORGE WASHINGTON DUN Witnesses:

vH. P. BURNHAM,

FRED. FURTH. 

